Matches in SemOpenAlex for { <https://semopenalex.org/work/W2054406442> ?p ?o ?g. }
Showing items 1 to 80 of
80
with 100 items per page.
- W2054406442 endingPage "3439" @default.
- W2054406442 startingPage "3439" @default.
- W2054406442 abstract "Purpose: To evaluate a small‐field prototype megavoltage x‐ray imager based on a fiber optic scintillation glass array (FOSGA) being developed for low dose megavoltage cone‐beam CT.Method and Materials: FOSGA is an emerging technology for superior megavoltage imaging based on high quantum efficiency scintillation glass fibers inserted into a tungsten‐polymer septal grid and coupled to a‐Si flat‐panels. Recent theoretical studies showed that it can provide an order‐of‐magnitude improvement in image quality compared to current phosphor screen flat‐panels based on modulation transfer function(MTF) and detectivequantum efficiency (DQE) models. A prototype FOSGA detector (8 cm × 8 cm, 9 mm thickness) was constructed using 0.9 mm diameter scintillation glass fibers (1.1 mm pitch, 0.1 mm septa). Detector components were obtained and assembled using patented technology for grid fabrication (tomoltihographic molding), fiber drawing, and mechanized fiber insertion. Preliminary imaging was performed with 6 MV x‐rays to evaluate detector performance and image quality via measurements of pixel sensitivity and uniformity, MTF, and DQE. Results: The structural accuracy of the detector assembly was validated using optical scans and uniformity measurements (< 50 ⌈ m fabrication accuracy, 100% fiber insertion). The prototype FOSGA imager provided good image quality (theoretical DQE limit ∼ 0.07 at 0 cy/mm for this geometry), indicating significant improvement over current megavoltage imagers (DQE < 0.02). Conclusion: The successful construction and implementation of our prototype detector demonstrated the feasibility of accurately fabricating structured scintillator arrays. The image quality measurements will be used as a benchmark for a future large‐field imaging system using thicker scintillator arrays with finer sampling (DQE ∼ 0.25 at 0 cy/mm expected). The superior imaging properties of FOSGA supported by viable mechanisms for cost effective fabrication make it a strong candidate for low dose megavoltage cone‐beam CT with soft‐tissue contrast visualization." @default.
- W2054406442 created "2016-06-24" @default.
- W2054406442 creator A5039698209 @default.
- W2054406442 creator A5091753781 @default.
- W2054406442 date "2010-06-01" @default.
- W2054406442 modified "2023-09-25" @default.
- W2054406442 title "WE-E-201C-01: Evaluation of a Small-Field Prototype Imager Based on a Fiber Optic Scintillation Glass Array (FOSGA): An Emerging Technology for Low Dose Megavoltage Cone-Beam CT" @default.
- W2054406442 doi "https://doi.org/10.1118/1.3469438" @default.
- W2054406442 hasPublicationYear "2010" @default.
- W2054406442 type Work @default.
- W2054406442 sameAs 2054406442 @default.
- W2054406442 citedByCount "0" @default.
- W2054406442 crossrefType "journal-article" @default.
- W2054406442 hasAuthorship W2054406442A5039698209 @default.
- W2054406442 hasAuthorship W2054406442A5091753781 @default.
- W2054406442 hasConcept C102637530 @default.
- W2054406442 hasConcept C115961682 @default.
- W2054406442 hasConcept C120665830 @default.
- W2054406442 hasConcept C121332964 @default.
- W2054406442 hasConcept C146108262 @default.
- W2054406442 hasConcept C154945302 @default.
- W2054406442 hasConcept C160633673 @default.
- W2054406442 hasConcept C161694136 @default.
- W2054406442 hasConcept C175231954 @default.
- W2054406442 hasConcept C179813606 @default.
- W2054406442 hasConcept C192562407 @default.
- W2054406442 hasConcept C194232370 @default.
- W2054406442 hasConcept C41008148 @default.
- W2054406442 hasConcept C55020928 @default.
- W2054406442 hasConcept C86169459 @default.
- W2054406442 hasConcept C94898600 @default.
- W2054406442 hasConcept C94915269 @default.
- W2054406442 hasConceptScore W2054406442C102637530 @default.
- W2054406442 hasConceptScore W2054406442C115961682 @default.
- W2054406442 hasConceptScore W2054406442C120665830 @default.
- W2054406442 hasConceptScore W2054406442C121332964 @default.
- W2054406442 hasConceptScore W2054406442C146108262 @default.
- W2054406442 hasConceptScore W2054406442C154945302 @default.
- W2054406442 hasConceptScore W2054406442C160633673 @default.
- W2054406442 hasConceptScore W2054406442C161694136 @default.
- W2054406442 hasConceptScore W2054406442C175231954 @default.
- W2054406442 hasConceptScore W2054406442C179813606 @default.
- W2054406442 hasConceptScore W2054406442C192562407 @default.
- W2054406442 hasConceptScore W2054406442C194232370 @default.
- W2054406442 hasConceptScore W2054406442C41008148 @default.
- W2054406442 hasConceptScore W2054406442C55020928 @default.
- W2054406442 hasConceptScore W2054406442C86169459 @default.
- W2054406442 hasConceptScore W2054406442C94898600 @default.
- W2054406442 hasConceptScore W2054406442C94915269 @default.
- W2054406442 hasIssue "6Part7" @default.
- W2054406442 hasLocation W20544064421 @default.
- W2054406442 hasOpenAccess W2054406442 @default.
- W2054406442 hasPrimaryLocation W20544064421 @default.
- W2054406442 hasRelatedWork W1885753850 @default.
- W2054406442 hasRelatedWork W1963646425 @default.
- W2054406442 hasRelatedWork W1967175162 @default.
- W2054406442 hasRelatedWork W1979426555 @default.
- W2054406442 hasRelatedWork W1980390837 @default.
- W2054406442 hasRelatedWork W1981124458 @default.
- W2054406442 hasRelatedWork W1984552934 @default.
- W2054406442 hasRelatedWork W2009436526 @default.
- W2054406442 hasRelatedWork W2010861168 @default.
- W2054406442 hasRelatedWork W2017251700 @default.
- W2054406442 hasRelatedWork W2038248571 @default.
- W2054406442 hasRelatedWork W2066581327 @default.
- W2054406442 hasRelatedWork W2067684333 @default.
- W2054406442 hasRelatedWork W2068746663 @default.
- W2054406442 hasRelatedWork W2462831744 @default.
- W2054406442 hasRelatedWork W2468456368 @default.
- W2054406442 hasRelatedWork W2791463457 @default.
- W2054406442 hasRelatedWork W2806043678 @default.
- W2054406442 hasRelatedWork W2985811746 @default.
- W2054406442 hasRelatedWork W3181792354 @default.
- W2054406442 hasVolume "37" @default.
- W2054406442 isParatext "false" @default.
- W2054406442 isRetracted "false" @default.
- W2054406442 magId "2054406442" @default.
- W2054406442 workType "article" @default.